This software package for the iPod - also compatible with other screened portable devices - provides photographic on-screen workouts for strength, weight loss, endurance, flexibility, heart health, and yoga, spread out across 6 days of different activities. PumpOne's goal is to provide the on-screen equivalent of a personal trainer that won't interrupt your music playback, and can be viewed at your personal pace. Tip screens give you instructions to help you properly perform the depicted actions. Three versions are available - Level 1 to Level 3 - and sold for $59 to $69 a piece online, or $179 collectively. The Level 1 box shown here is available for $40 at retail stores.

Editors' Note: iLounge only reviews products in "final" form, but many companies now change their offerings - sometimes several times - after our reviews have been published.
This iLounge article provides more information on this practice, known as revving.